{"id":25808,"date":"2025-12-22T15:12:30","date_gmt":"2025-12-22T15:12:30","guid":{"rendered":"https:\/\/edumentors.co.uk\/blog\/?p=25808"},"modified":"2025-12-22T16:41:47","modified_gmt":"2025-12-22T16:41:47","slug":"gcse-biology-topics-by-exam-boards-what-do-you-need-to-know","status":"publish","type":"post","link":"https:\/\/edumentors.co.uk\/blog\/gcse-biology-topics-by-exam-boards-what-do-you-need-to-know\/","title":{"rendered":"GCSE Biology Topics by Exam Boards: What Do You Need to Know"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div>\n<p>GCSE Biology might seem difficult from the start. One day you\u2019re learning about cells and the next you\u2019re somehow expected to understand ecosystems, genetics and the whole human body too. It\u2019s a lot and it\u2019s normal to feel like you don\u2019t even know where to start.<\/p>\n\n\n\n<p>This guide makes it simpler. It\u2019s a clear list of GCSE Biology topics by exam board, so you can revise what actually comes up in your exams. One thing that catches loads of students out is this: not everyone studies the same Biology content. Your topics depend on your exam board. They can also change depending on whether you\u2019re doing Combined Science or Separate Biology and whether you\u2019re entered for Foundation or Higher.<\/p>\n\n\n\n<p>Once you know those three things, your revision gets way more focused. And that\u2019s the whole point of this guide.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">AQA GCSE Biology Topics<\/h2>\n\n\n\n<p>If you\u2019re following the <a href=\"https:\/\/www.aqa.org.uk\/\" target=\"_blank\" rel=\"noopener\" title=\"AQA\">AQA<\/a> Biology course, your content is split across two main papers. Each paper tests a group of topics that build on one another, from tiny cells to whole ecosystems. <a href=\"https:\/\/www.aqa.org.uk\/subjects\/biology\/gcse\/biology-8461\/specification\/specification-at-a-glance?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<div class=\"wpdt-c row wpDataTableContainerSimpleTable wpDataTables wpDataTablesWrapper\n\"\n    >\n        <table id=\"wpdtSimpleTable-326\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"2\"\n           data-rows=\"4\"\n           data-wpID=\"326\"\n           data-responsive=\"0\"\n           data-has-header=\"0\">\n\n                    <tbody>        <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-tc-000000 wpdt-bold wpdt-bc-CE5FE1\"\n                                            data-cell-id=\"A1\"\n                    data-col-index=\"0\"\n                    data-row-index=\"0\"\n                    style=\" width:43.70709382151%;                    padding:10px;\n                    \"\n                    >\n                                        Paper 1                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-tc-000000 wpdt-bold wpdt-bc-CE5FE1\"\n                                            data-cell-id=\"B1\"\n                    data-col-index=\"1\"\n                    data-row-index=\"0\"\n                    style=\" width:56.29290617849%;                    padding:10px;\n                    \"\n                    >\n                                        Paper 2                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"A2\"\n                    data-col-index=\"0\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Cell biology                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"B2\"\n                    data-col-index=\"1\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Homeostasis and response                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"A3\"\n                    data-col-index=\"0\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Organisation and Bioenergetics                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"B3\"\n                    data-col-index=\"1\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Inheritance, variation and evolution                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"A4\"\n                    data-col-index=\"0\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Infection and response                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"B4\"\n                    data-col-index=\"1\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Ecology                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-326'>\n.wpdt-tc-000000 { color: #000000 !important;}\n.wpdt-bc-CE5FE1 { background-color: #CE5FE1 !important;}\n.wpdt-bc-D2C1D5 { background-color: #D2C1D5 !important;}\n<\/style>\n\n\n\n\n<h3 class=\"wp-block-heading\">Topic 1: Cell Biology<\/h3>\n\n\n\n<p><a href=\"https:\/\/edumentors.co.uk\/blog\/gcse-biology-cell-biology\/\" target=\"_blank\" rel=\"noopener\" title=\"Cell biology\">Cell biology<\/a> is about the tiny units of life called cells. You\u2019ll learn what cells are made of, how they work and how they grow and divide. You\u2019ll also cover how materials move in and out of cells. <a href=\"https:\/\/www.aqa.org.uk\/subjects\/biology\/gcse\/biology-8461\/specification\/subject-content?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 2: Organisation<\/h3>\n\n\n\n<p>This links cells together into tissues, organs and systems. You\u2019ll look at how the digestive and circulatory systems work and how plants move water and nutrients around. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 3: Infection and Response<\/h3>\n\n\n\n<p>Here you explore diseases, how they spread and how the body defends itself. You\u2019ll also see how vaccines and medicines help protect us. <a href=\"https:\/\/www.savemyexams.com\/learning-hub\/subject-guides\/gcse-biology-topics\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 4: Bioenergetics<\/h3>\n\n\n\n<p>This topic is all about energy in living things. You\u2019ll study how plants make food in photosynthesis and how both plants and animals release energy in respiration. <a href=\"https:\/\/www.savemyexams.com\/learning-hub\/subject-guides\/gcse-biology-topics\/?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 5: Homeostasis and Response<\/h3>\n\n\n\n<p>Homeostasis is how the body keeps conditions steady, for example, temperature, water balance and blood sugar. You\u2019ll also learn about the nervous and hormonal systems that control these processes. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 6: Inheritance, Variation and Evolution<\/h3>\n\n\n\n<p>This section looks at how traits pass from parents to offspring, why organisms vary and how species change over time.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 7: Ecology<\/h3>\n\n\n\n<p>Ecology is about living things in their environment. You\u2019ll learn how species interact, how energy flows through ecosystems and why biodiversity matters. <\/p>\n\n\n\n<p>Even though these topics are grouped by paper, many ideas link across them. Skills like analysing data and interpreting graphs show up in questions too, so it helps to revise both knowledge and how to use it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Edexcel GCSE Biology Topics<\/h2>\n\n\n\n<p>If you\u2019re studying <a href=\"https:\/\/qualifications.pearson.com\/en\/about-us\/qualification-brands\/edexcel.html\" target=\"_blank\" rel=\"noopener\" title=\"Edexcel\">Edexcel<\/a> GCSE Biology, the course is split across two exam papers. Both Foundation and Higher tiers cover the same topic areas, but Higher papers go into more detail and include more challenging questions.<\/p>\n\n\n\n<div class=\"wpdt-c row wpDataTableContainerSimpleTable wpDataTables wpDataTablesWrapper\n\"\n    >\n        <table id=\"wpdtSimpleTable-327\"\n           style=\"border-collapse:collapse;\n                   border-spacing:0px;\"\n           class=\"wpdtSimpleTable wpDataTable\"\n           data-column=\"2\"\n           data-rows=\"6\"\n           data-wpID=\"327\"\n           data-responsive=\"0\"\n           data-has-header=\"0\">\n\n                    <tbody>        <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-tc-000000 wpdt-bold wpdt-bc-CE5FE1\"\n                                            data-cell-id=\"A1\"\n                    data-col-index=\"0\"\n                    data-row-index=\"0\"\n                    style=\" width:47.672552166934%;                    padding:10px;\n                    \"\n                    >\n                                        Paper 1                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-tc-000000 wpdt-bold wpdt-bc-CE5FE1\"\n                                            data-cell-id=\"B1\"\n                    data-col-index=\"1\"\n                    data-row-index=\"0\"\n                    style=\" width:52.327447833066%;                    padding:10px;\n                    \"\n                    >\n                                        Paper 2                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"A2\"\n                    data-col-index=\"0\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Key concepts in biology                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"B2\"\n                    data-col-index=\"1\"\n                    data-row-index=\"1\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Key concepts in biology                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"A3\"\n                    data-col-index=\"0\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Genetics                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"B3\"\n                    data-col-index=\"1\"\n                    data-row-index=\"2\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Plant structures and their functions                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"A4\"\n                    data-col-index=\"0\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Natural selection and genetic modification                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"B4\"\n                    data-col-index=\"1\"\n                    data-row-index=\"3\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Animal coordination, control and homeostasis                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"A5\"\n                    data-col-index=\"0\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Health, disease and the development of medicines                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"B5\"\n                    data-col-index=\"1\"\n                    data-row-index=\"4\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Exchange and transport in animals                    <\/td>\n                                        <\/tr>\n                            <tr class=\"wpdt-cell-row \" >\n                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"A6\"\n                    data-col-index=\"0\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Cells and control                    <\/td>\n                                                <td class=\"wpdt-cell wpdt-bc-D2C1D5\"\n                                            data-cell-id=\"B6\"\n                    data-col-index=\"1\"\n                    data-row-index=\"5\"\n                    style=\"                    padding:10px;\n                    \"\n                    >\n                                        Ecosystems and material cycles                    <\/td>\n                                        <\/tr>\n                    <\/table>\n<\/div><style id='wpdt-custom-style-327'>\n.wpdt-tc-000000 { color: #000000 !important;}\n.wpdt-bc-CE5FE1 { background-color: #CE5FE1 !important;}\n.wpdt-bc-D2C1D5 { background-color: #D2C1D5 !important;}\n<\/style>\n\n\n\n\n<h3 class=\"wp-block-heading\">Topic 1: Key Concepts in Biology<\/h3>\n\n\n\n<p>This topic builds the basics you\u2019ll use everywhere else. It covers cells, enzymes, microscopy and how scientists plan and analyse experiments.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 2: Cells and Control<\/h3>\n\n\n\n<p>Here, you look at how cells work and how the body controls processes like blood sugar and hormones. You\u2019ll also study the nervous system and the brain.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 3: Genetics<\/h3>\n\n\n\n<p>This topic focuses on DNA, genes and inheritance. You\u2019ll learn how characteristics are passed on and how genetic disorders can occur.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 4: Natural Selection and Genetic Modification<\/h3>\n\n\n\n<p>You\u2019ll explore evolution, selective breeding and how organisms adapt over time. This topic also introduces genetic engineering and its uses.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 5: Health, Disease and the Development of Medicines<\/h3>\n\n\n\n<p>This topic is all about what makes us ill, how the body fights back and how we treat disease. You\u2019ll learn the difference between bacteria, viruses, fungi and protists and how these pathogens spread. You\u2019ll also cover the immune system, including things like white blood cells, antibodies and how vaccinations help protect you. Then it moves into medicine, where you look at antibiotics, painkillers and how new drugs are developed, tested and approved. This is where you\u2019ll also need to understand ideas like clinical trials, placebos and why testing has to be fair and reliable.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 6: Plant Structures and Their Functions<\/h3>\n\n\n\n<p>This topic helps you understand how plants survive and grow without a brain or a heart. You\u2019ll cover photosynthesis, including how plants use light, carbon dioxide and water to make glucose. You\u2019ll also learn how plants transport water and minerals from roots to leaves and how sugars move around the plant to support growth. There\u2019s a big focus on plant tissues like xylem and phloem, plus how leaves are adapted for gas exchange. You\u2019ll also look at factors that affect photosynthesis, which often come up in graph and data questions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 7: Animal Coordination, Control and Homeostasis<\/h3>\n\n\n\n<p>Homeostasis is essentially the body\u2019s mechanism for maintaining stability, even when the environment changes. In this topic, you\u2019ll learn how the nervous system and hormones help control the body. You\u2019ll look at things like reflexes, the brain, and how signals travel. Then you\u2019ll cover key examples of homeostasis, such as controlling body temperature, balancing water levels, and maintaining stable blood glucose levels. Questions here often test how different organs work together, not just one process on its own.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 8: Exchange and Transport in Animals<\/h3>\n\n\n\n<p>This topic is about how the body moves substances in and out of cells and why structure matters. You\u2019ll study gas exchange in the lungs, including how alveoli are adapted for efficient diffusion. You\u2019ll also cover the circulatory system, looking at the heart, blood vessels and how blood transports oxygen, nutrients, carbon dioxide and hormones. A lot of the marks come from explaining why the system is efficient, so it\u2019s not just \u201cwhat happens\u201d, but \u201cwhy it works\u201d.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Topic 9: Ecosystems and Material Cycles<\/h3>\n\n\n\n<p>This final topic looks at ecosystems, food chains, biodiversity and how materials like carbon and water cycle through the environment.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WJEC GCSE Biology Topics<\/h2>\n\n\n\n<p>If you\u2019re studying <a href=\"https:\/\/www.wjec.co.uk\/\" target=\"_blank\" rel=\"noopener\" title=\"WJEC\">WJEC<\/a>, this section really matters. Unlike some exam boards, WJEC Biology is organised into clear units with numbered topics and exam questions often stick closely to this structure. Knowing these numbers helps you revise more accurately.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"850\" height=\"567\" src=\"https:\/\/edumentors.co.uk\/blog\/wp-content\/uploads\/2025\/12\/gcse-biology-topics.jpg\" alt=\"gcse biology topics\" class=\"wp-image-25845\" style=\"width:680px\" srcset=\"https:\/\/blog.edumentors.co.uk\/wp-content\/uploads\/2025\/12\/gcse-biology-topics.jpg 850w, https:\/\/blog.edumentors.co.uk\/wp-content\/uploads\/2025\/12\/gcse-biology-topics-300x200.jpg 300w, https:\/\/blog.edumentors.co.uk\/wp-content\/uploads\/2025\/12\/gcse-biology-topics-768x512.jpg 768w, https:\/\/blog.edumentors.co.uk\/wp-content\/uploads\/2025\/12\/gcse-biology-topics-728x485.jpg 728w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\">Unit 1: Cells, Organ Systems and Ecosystems<\/h3>\n\n\n\n<p>Unit 1 focuses on the basics of life, how organisms are organised and how living things interact with their environment.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>1.1 Cells and movement across membranes<\/strong><br>You\u2019ll learn about animal and plant cells, specialised cells and how substances move in and out by diffusion, osmosis and active transport.<\/li>\n\n\n\n<li><strong>1.2 Respiration and the respiratory system<\/strong><br>This covers aerobic and anaerobic respiration, plus how the lungs are adapted for gas exchange.<\/li>\n\n\n\n<li><strong>1.3 Digestion and the digestive system<\/strong><br>You\u2019ll study enzymes, digestion in the human body and how nutrients are absorbed.<\/li>\n\n\n\n<li><strong>1.4 Circulatory system and transport in plants<\/strong><br>This topic looks at the heart, blood vessels and blood, alongside plant transport systems like xylem and phloem.<\/li>\n\n\n\n<li><strong>1.5 Ecosystems, energy flow and nutrient cycles<br><\/strong>You\u2019ll explore food chains, food webs, pyramids of biomass and cycles such as the carbon cycle.<\/li>\n\n\n\n<li><strong>1.6 Human impact on ecosystems<\/strong><br>This section focuses on pollution, biodiversity, conservation and how humans affect the environment.<br><p data-start=\"343\" data-end=\"464\"><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Unit 2: Variation, Homeostasis and Micro-organisms<\/h3>\n\n\n\n<p>Unit 2 moves into genetics, control systems and how the body responds to internal and external changes.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>2.1 Variation and inheritance<\/strong><br>You\u2019ll learn how characteristics are passed on, including genes, DNA and inherited conditions.<\/li>\n\n\n\n<li><strong>2.2 Evolution and natural selection<\/strong><br>This topic explains how species change over time and how natural selection works.<\/li>\n\n\n\n<li><strong>2.3 Micro-organisms and disease<\/strong><br>You\u2019ll study bacteria, viruses, fungi and how they cause disease, as well as how disease spreads.<\/li>\n\n\n\n<li><strong>2.4 Defence against disease<\/strong><br>This covers the immune system, white blood cells, antibodies and vaccination.<\/li>\n\n\n\n<li><strong>2.5 Nervous system and hormonal control<\/strong><br>You\u2019ll learn how the body uses nerves and hormones to respond to changes.<\/li>\n\n\n\n<li><strong>2.6 Homeostasis<\/strong><br>This focuses on keeping internal conditions stable, such as body temperature and water balance.<\/li>\n\n\n\n<li><strong>2.7 Control of blood glucose<\/strong><br>A key topic on hormones like insulin and glucagon and how blood sugar levels are regulated.<\/li>\n\n\n\n<li><strong>2.8 Plant hormones and responses<\/strong><br>You\u2019ll look at plant responses, including tropisms and the role of hormones like auxins.<br><p data-start=\"1476\" data-end=\"1580\"><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Unit 3: Practical Assessment<\/h3>\n\n\n\n<p>Unit 3 is a centre-based practical assessment that is externally marked. You\u2019ll carry out practical work in school and your understanding of methods, results and conclusions is assessed. It\u2019s not about memorising experiments, but about showing you can plan, carry out and evaluate practical biology properly.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OCR GCSE Biology Topics<\/h2>\n\n\n\n<p>OCR Biology is where a lot of students get confused, because there are two different specifications. They cover similar ideas, but the structure and topic names are different. Make sure you know which one you\u2019re doing before revising.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OCR Gateway (Biology A &#8211; J247) Topics<\/h3>\n\n\n\n<p>OCR Gateway Biology is organised into seven main topics, labelled B1 to B7. Each one builds from basic biology to bigger environmental ideas.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B1: Cell-level systems<\/strong><br>Cells, microscopy, enzymes, and how substances move in and out of cells.<\/li>\n\n\n\n<li><strong>B2: Scaling up<\/strong><br>How cells work together in tissues, organs, and organ systems, including transport in animals and plants.<\/li>\n\n\n\n<li><strong>B3: Organism-level systems<\/strong><br>Key systems include digestion, breathing, circulation, and the nervous system.<\/li>\n\n\n\n<li><strong>B4: Community level systems<\/strong><br>Ecosystems, biodiversity, food chains, and how organisms interact with each other.<\/li>\n\n\n\n<li><strong>B5: Genes, inheritance and selection<\/strong><br>DNA, genes, inheritance, variation, and natural selection.<\/li>\n\n\n\n<li><strong>B6: Global challenges<\/strong><br>Big-picture biology, such as disease, climate change, food security, and sustainability.<\/li>\n\n\n\n<li><strong>B7: Practical skills<\/strong><br>Practical work and scientific skills are assessed across exams.<br><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">OCR Twenty-First Century (Biology B &#8211; J257) Chapters<\/h3>\n\n\n\n<p>OCR Twenty-First Century Biology is split into eight chapters, also labelled B1 to B8. The content is often taught through real-life contexts.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B1: You and your genes<\/strong><br>DNA, inheritance and genetic variation.<\/li>\n\n\n\n<li><strong>B2: Keeping healthy<\/strong><br>Disease, the immune system and lifestyle factors that affect health.<\/li>\n\n\n\n<li><strong>B3: Living together &#8211; food and ecosystems<\/strong><br>Ecosystems, food production and how humans manage resources.<\/li>\n\n\n\n<li><strong>B4: Using food and controlling growth<\/strong><br>Respiration, photosynthesis and growth in plants and animals.<\/li>\n\n\n\n<li><strong>B5: The human body &#8211; staying alive<\/strong><br>Organ systems such as digestion, circulation and gas exchange.<\/li>\n\n\n\n<li><strong>B6: Life on Earth &#8211; past, present and future<\/strong><br>Evolution, extinction and how species change over time.<\/li>\n\n\n\n<li><strong>B7: Ideas about Science<\/strong><br>How scientific ideas develop, including risk, ethics and the quality of evidence. This is assessed through questions linked to biology topics, not as a standalone exam.<\/li>\n\n\n\n<li><strong>B8: Practical skills<\/strong><br>Planning experiments, analysing data and evaluating results.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"850\" height=\"567\" src=\"https:\/\/edumentors.co.uk\/blog\/wp-content\/uploads\/2025\/12\/GCSE-biology.jpg\" alt=\"gcse biology\" class=\"wp-image-25847\" style=\"width:680px\" srcset=\"https:\/\/blog.edumentors.co.uk\/wp-content\/uploads\/2025\/12\/GCSE-biology.jpg 850w, https:\/\/blog.edumentors.co.uk\/wp-content\/uploads\/2025\/12\/GCSE-biology-300x200.jpg 300w, https:\/\/blog.edumentors.co.uk\/wp-content\/uploads\/2025\/12\/GCSE-biology-768x512.jpg 768w, https:\/\/blog.edumentors.co.uk\/wp-content\/uploads\/2025\/12\/GCSE-biology-728x485.jpg 728w\" sizes=\"(max-width: 850px) 100vw, 850px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\">What GCSE Biology Topics Overlap Across Most Exam Boards<\/h2>\n\n\n\n<p>No matter which exam board you\u2019re on, a lot of GCSE Biology covers the same core ideas. That\u2019s good news, because it means revision in one area often helps in another.<\/p>\n\n\n\n<p>Across most exam boards, you\u2019ll study cells and how they work, including the role of enzymes. Respiration comes up in every course, focusing on how living things release energy. You\u2019ll also learn about genetics and inheritance, explaining how features pass from parents to offspring. Ecosystems and the relationships between organisms appear widely, alongside homeostasis, where the body keeps internal conditions stable. Topics around disease and health, such as pathogens, immunity and treatments are also common.<\/p>\n\n\n\n<p>These shared topics give you a solid foundation. Still, the detail and exam style can vary, so always check your exam board topic list above to make sure you\u2019re revising exactly what you need.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>GCSE Biology can feel much more manageable once you know exactly what you need to revise. Breaking the subject down by exam board helps you focus on the right topics and avoid wasting time on content that won\u2019t come up. While many ideas overlap across boards, the detail and exam style still matter, so always double-check your own specification before revising.<\/p>\n\n\n\n<p>If you\u2019re finding certain topics tricky or want extra confidence before exams, support from <a href=\"https:\/\/edumentors.co.uk\/tutors\/biology\/gcse?utm_source=blog&amp;utm_medium=gcse_biology_tutors&amp;utm_campaign=conclusion\" target=\"_blank\" rel=\"noopener\" title=\"GCSE Biology online tutors\">GCSE Biology online tutors<\/a> can make a real difference. A good tutor can explain difficult ideas clearly, help you practise exam questions and keep your revision on track. With the right plan and support, GCSE Biology becomes far less overwhelming and much easier to tackle.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">FAQs<\/h3>\n\n\n\t\t<details\t\tclass=\"sc_fs_faq sc_card     sc_fs_card__animate\"\n\t\t\t\t>\n\t\t\t\t\t<summary>\n\t\t\t\t<h4>What topics are in GCSE Biology?<\/h4>\t\t\t\t\t<\/summary>\n\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>GCSE Biology covers how living things work, from cells right up to ecosystems. Most exam boards include topics such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cells and enzymes<\/li>\n\n\n\n<li>Organisation in plants and animals<\/li>\n\n\n\n<li>Infection, disease and immunity<\/li>\n\n\n\n<li>Photosynthesis and respiration<\/li>\n\n\n\n<li>Homeostasis and control<\/li>\n\n\n\n<li>Genetics, inheritance, and evolution<\/li>\n\n\n\n<li>Ecosystems, biodiversity and human impact<\/li>\n<\/ul>\n\n\n\n<p>The exact content depends on your exam board and whether you study Combined Science or Separate Biology, plus Foundation or Higher tier.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/details>\n\t\t\t\t<details\t\tclass=\"sc_fs_faq sc_card     sc_fs_card__animate\"\n\t\t\t\t>\n\t\t\t\t\t<summary>\n\t\t\t\t<h4>What topics are in Biology Paper 1 AQA GCSE?<\/h4>\t\t\t\t\t<\/summary>\n\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>AQA GCSE Biology Paper 1 covers:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cell biology<\/li>\n\n\n\n<li>Organisation<\/li>\n\n\n\n<li>Infection and response<\/li>\n\n\n\n<li>Bioenergetics<\/li>\n<\/ul>\n\n\n\n<p>These topics focus on how cells function, how organisms are organised, how diseases affect the body and how energy moves through living things.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/details>\n\t\t\t\t<details\t\tclass=\"sc_fs_faq sc_card     sc_fs_card__animate\"\n\t\t\t\t>\n\t\t\t\t\t<summary>\n\t\t\t\t<h4>What topics are in Biology Paper 2 AQA GCSE?<\/h4>\t\t\t\t\t<\/summary>\n\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>AQA GCSE Biology Paper 2 covers:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Homeostasis and response<\/li>\n\n\n\n<li>Inheritance, variation, and evolution<\/li>\n\n\n\n<li>Ecology<\/li>\n<\/ul>\n\n\n\n<p>This paper looks at control systems in the body, genetics, evolution, and how organisms interact with their environment.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/details>\n\t\t\t\t<details\t\tclass=\"sc_fs_faq sc_card     sc_fs_card__animate\"\n\t\t\t\t>\n\t\t\t\t\t<summary>\n\t\t\t\t<h4>How many topics are there in GCSE Biology?<\/h4>\t\t\t\t\t<\/summary>\n\t\t\t\t<div>\n\t\t\t\t\t\t<div class=\"sc_fs_faq__content\">\n\t\t\t\t\n\n<p>The number of topics depends on the exam board:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>AQA<\/strong>: 7 topics<\/li>\n\n\n\n<li><strong>Edexcel<\/strong>: 9 topics<\/li>\n\n\n\n<li><strong>OCR Gateway<\/strong>: 7 topics<\/li>\n\n\n\n<li><strong>OCR Twenty First Century<\/strong>: 8 topics<\/li>\n\n\n\n<li><strong>WJEC<\/strong>: 2 main units plus a practical assessment<\/li>\n<\/ul>\n\n\n\n<p>Even though the structure changes, many core ideas overlap. Always revise using your own exam board specification to stay focused.<\/p>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/details>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What topics are in GCSE Biology?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>GCSE Biology covers how living things work, from cells right up to ecosystems. Most exam boards include topics such as:<\/p><ul><li>Cells and enzymes<\/li><li>Organisation in plants and animals<\/li><li>Infection, disease and immunity<\/li><li>Photosynthesis and respiration<\/li><li>Homeostasis and control<\/li><li>Genetics, inheritance, and evolution<\/li><li>Ecosystems, biodiversity and human impact<\/li><\/ul><p>The exact content depends on your exam board and whether you study Combined Science or Separate Biology, plus Foundation or Higher tier.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What topics are in Biology Paper 1 AQA GCSE?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>AQA GCSE Biology Paper 1 covers:<\/p><ul><li>Cell biology<\/li><li>Organisation<\/li><li>Infection and response<\/li><li>Bioenergetics<\/li><\/ul><p>These topics focus on how cells function, how organisms are organised, how diseases affect the body and how energy moves through living things.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What topics are in Biology Paper 2 AQA GCSE?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>AQA GCSE Biology Paper 2 covers:<\/p><ul><li>Homeostasis and response<\/li><li>Inheritance, variation, and evolution<\/li><li>Ecology<\/li><\/ul><p>This paper looks at control systems in the body, genetics, evolution, and how organisms interact with their environment.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"How many topics are there in GCSE Biology?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"<p>The number of topics depends on the exam board:<\/p><ul><li><strong>AQA<\/strong>: 7 topics<\/li><li><strong>Edexcel<\/strong>: 9 topics<\/li><li><strong>OCR Gateway<\/strong>: 7 topics<\/li><li><strong>OCR Twenty First Century<\/strong>: 8 topics<\/li><li><strong>WJEC<\/strong>: 2 main units plus a practical assessment<\/li><\/ul><p>Even though the structure changes, many core ideas overlap. Always revise using your own exam board specification to stay focused.<\/p>\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n\n\n\n<p><br><\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><br><p data-start=\"2662\" data-end=\"2981\"><\/p><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><br><\/h3>\n\n\n\n<p><br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><br><a href=\"https:\/\/exampapersplus.co.uk\/advice\/gcse\/gcse-biology-topics-what-you-need-to-know-for-the-exam\/?srsltid=AfmBOoo28DehPVFjrDjuTntFvAHLEYvijchRldaTT4rLoKMzfEOVuzZa&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/h3>\n\n\n\n<p><a href=\"https:\/\/exampapersplus.co.uk\/advice\/gcse\/gcse-biology-topics-what-you-need-to-know-for-the-exam\/?srsltid=AfmBOoo28DehPVFjrDjuTntFvAHLEYvijchRldaTT4rLoKMzfEOVuzZa&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/www.aqa.org.uk\/subjects\/biology\/gcse\/biology-8461\/specification\/subject-content\/homeostasis-and-response?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><a href=\"https:\/\/exampapersplus.co.uk\/advice\/gcse\/gcse-biology-topics-what-you-need-to-know-for-the-exam\/?srsltid=AfmBOoo28DehPVFjrDjuTntFvAHLEYvijchRldaTT4rLoKMzfEOVuzZa&amp;utm_source=chatgpt.com\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>GCSE Biology might seem difficult from the start. One day you\u2019re learning about cells and the next you\u2019re somehow expected to understand ecosystems, genetics and the whole human body too. It\u2019s a lot and it\u2019s normal to feel like you don\u2019t even know where to start. This guide makes it simpler. It\u2019s a clear list [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":25849,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[255],"tags":[20,176,1686],"class_list":["post-25808","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gcse-students","tag-gcse","tag-gcse-biology","tag-gcse-biology-topics"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/posts\/25808"}],"collection":[{"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=25808"}],"version-history":[{"count":35,"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/posts\/25808\/revisions"}],"predecessor-version":[{"id":25852,"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/posts\/25808\/revisions\/25852"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/media\/25849"}],"wp:attachment":[{"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=25808"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=25808"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edumentors.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=25808"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}